Locomotive rod-pin lubricator



Feb. 12, 1929.

H. J. SWANSON LOCOMOTIVE ROD PIN LUBRICATOR ,Filed Marci-h 12, 1927 s Sheets-Sheet 1' Feb. 12, 1929.

H. J. SWANSON LOCOMOTIVE ROD PIN LUBRICATOR Filed March 12, 1927 a SheetS-Sheet 2 Feb. 12, 1929.

- 1,701,645 H. J. swANsoN I LOCOMOTIVE RQD PIN LUBRICATOR Filed March 12, 1927 Q Sheets-Sheet 3 ATTORNEY lr etented g. TEE STA. TE S.

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LOCOMOTIVE non-rm LUBBIGATOR.

Application filed March 12, 1927. 7 Serial No. 174,893.

This invention relates to locon'iotive rod pin lubricators of that class 111 which the lubricator is actuated by reciprocation of the locon'iotive rod to feed lubricant to the comprising a plunger adapted to be threaded into a recess the plunger being actuated by reciprocation of a weight which tends to turn a ratchet carrying a pinion meshing with two gee-rs, one of said gears beingheld stationary while the other is movable and the movable gear being provided with one less tooth than the stationary gear, the movable gear being adapted to rotate the plunger so thatlit is threaded very slowly into the recess provided for the lubricant.

These objects and the several novel features of the invention are hereinafter more fully described and claimed and the "preferred form of constructionby which these objects are attained is shown in the accompanying drawings in which llig. 1 is a plan view of a lubricator embodying my invention.

Fig. 2 is a section taken on line 2'2 of Fig. 3 is a section taken on line 8-3 01"". Fig. 2.

Fig. 1 is a section taken on line 4-4 of 1 showingthe plunger.

Fig. 5 is an elevation partly in section showing the "11163113 for I disengaging the plunger from operation.

6 is an enlarged detailsh'owing the pinion and the two gears in mesh therewith.

Fi 7 is a View showing the two gears and pinion in elevation.

Fig. 8 is a perspective view of the lubri cator showing'the means for attachingthe casing to thelocomotive rod.

As shown in Figs. 2 and 1 the locomotive rod 1 is provided with an interiorly threaded recess 2 and a member 3 shown in Figs. 4; and 8 is welded or otherwise secured to the, face of the rod and is provided with an aperture 1 positioned over the threaded recess 2. This member 3 is provided with ways 5 therein and the casing portion 6 is provided with a tongue 7 on each side riding in the respective way 5. The casing portion. 6 provided with arecess 8 therein which registers with the recesstin the member 3 as shown in Fig. 2 and as shown. in F lwhen the plunger 9 is threaded into i the recess 2 the spring 10 in the recess 8 moves the'member -11 downwardly so that it engages in the bottom. of the recess 8 and aperture 1 and thus locks the casing portion 6 to the member 3. The plunger 9 is provided with a square stem 12 and this stem 12 isprovided with a crossbar 13 in the uppereid thereof. The .s n 12 extei'ids throng 1 cylindrical member 14' which is rotatably. mounted in the casing portions 6 and 15 and the member 141's provided with an annular groove 16 in theupper end thereofand a pin 17 shown in Fig. t extends into this groove andv prevents vertical movement of themember 14:. Rotatably mounted on the c lindrical member 14 is a pair of gears 18 and 19, the gear 18 having one more tooth than the gear.

19 and as shown inFigsi 1 and 5 a lever'20is pivotally mounted in the slot 21 on the pin 22 and the end 23' oil the lever .20 extends through an apert-nreprovided therefor inthe casing 15 and in the gear 18. This lever in the position shown in 5 holds the gear 18 from rotation while the gear 19 is freely rotatable aboutthe member 14. Directly be v neath the gear-1'9 is a ratchet 24: shown in Figs;

2, 3 and 5 and this ratchet is provided with a pin 25 on which a pinion gear 26 is rotatably mounted. the pinion meshing with both gears 18 and 19. Asthe ratchet 2-1 isrotated the pinion 26 is moved aliiout the periphery ofboth gears 18 and'19 and upon a complete rotation ofthe ratchet 24 the pinion'26moves the gear 19which has one less tooth than the gear 18: a distance oi onetooth so that in order to produceacomplete rotation of the gear 19 the ratchet21 must rotate an equal number of times to the number of teeth on the gear 19.1 To communicate the movement of the gear 19 to the plunger the member 14 as shown in Figs. 2 and 3 is provided with four notches 2! and as shown in Fig. 5 a chamber 28 is pro; vided between the gears 18 and 19 inwhich the spring pressed dogs 29 are pivotally mounted on the gear 19. These dogs engage in the notches 27 and turn the member with the gear 19' and as the stem 12 fits in a square aperture in the member 1 1 the stem is turned neath the plate 30 on the portions of the casing part 6 and is provided with an enlarged. aperture 35 about the member 14 so that the block cannot strike he member 1-1 This block is adapted to be reciprocated between the stop portions 36 of the casing 15 by reciprocation of the locomotive rod. Upon movement of the block to the left of Fig. 3 the ratchet is not turned but upon sueceeding movement to the right of Fig. 3 by reciprocation of the locomotive rod the dog 37 mounted on block 33 turns the ratchet 24 a distance of one tooth. By this arrangement the reciprocative movement of the locomotive rod is utilized to turn the ratchet 24 in a clockwise direction and this movement of the ratchet carries the pinion 26 about the gears 18 and 19 thus turning the movable gear it? and dogs 29 which turn the member 14 and stem 12 and threads the plunger 9 into the recess 2. By this arrangement the thread ng of the plunger into the recess of the locomotive rod is very slow in proportion to the rotative movement of the ratchet 24 but the movement of the plunger while very slow is continuous during operation of the locomotive. As shown in Fig. 4 the cross bar 13 strikes the extending end of the lever 20 and depresses it against the tension of the spring 39 shown in Fig. 5 thus withdrawing the end 24 from the gear 18 so that the end 18 is freely rotatable about the member 14. At this time rotation of the ratchet 25 moves the pinion 26 about the periphery of the gears 18 and 19 but as both gears are freely rotatable at this time the gear 18 may turn in relation to the gear 19 which will remain stationary without rotating the member 14 and plunger stem 12. By this arrangement as the plunger reaches the bottom of the recess 2 the mechanism for driving the plunger is automatically disengaged. To return the plunger to the position shown in Fig. 2 it is only necessary to, depress the end of the lever 20 while the plunger 9 is being Lin-threaded from the recess 2. The plunger 9 may be manually threaded into the recess 2 at any time by grasping the crossbar 13 and rotating the stem 12 and member 14 in a clockwise direction as will be understood from Fig. 3 which will cause the dogs 29 to disengage from the notches 27.

From the foregoing description it becomes evident that the device is very simple and e'fiicient in operation. will not easily get out of order, is composed of few parts and is of consequent-low manufacturing cost and provides a device which accomplishes the objects described.

iug thus fully described my invention,

its utility and mode of operation, what I claim and'desire to secure by Letters Patent the United States is locomotive rod pin'lubricator comprising alocomotive rod having an internal- .ly threaded recess for lubricant, a plunger adap ed to be threaded into the recess to dis charge the lubricant tiiieret'rom, a secured to he locomotive rodover the recess,

being prov ed with a stem e:- L rough the casing, a gear normally "lied relation with the casing, a rotatable gear beneath the fixed gear and havs' one less tooth than the lined gear, a

nion mesl 'ng with both gears, a ratchet on which t 1 a. IL

pinion rotatably mounted, a block witl .1 the casing adapted tor limited reciprocal mo ement by reciprocation ot the rod, a do ca l'lQ-ii by the bloclt and ei'igaging the chet whereby reciprocation of the blocl: rot: tes the ratchet, means carried by the movable ear for rotating the plunger stcn tl'ierewitn, and means for releasing-the gear to idle rotation.

2. A locomotive rod pin lubricator comprising a locomotive rod having aninternally threaded recess for lubricant, a plunger ada fled to be threaded into the recess to discharge the lubricant therefrom, a casing secured LO the locomotive rod over the recess,

the plunger being provided with a stem eX- tending through the casing, a gear normally held in fixed relation with the casing, a rotatable gear beneath the fixed gear and having one less tooth than the fixed gear, a pinion meshing with both gears, a ratchet on which the pinion is rotatably mounted, ablock within the casing adapted for limited reciprocal movement by reciprocation of the rod, a dog carried by the block and engaging the ratchet whereby reciprocation orthe block rotates the ratchet, means ca ried by the rotatable gear for rotating the plunger stem therewith, a crossbar secured to the upper end of the plunger stem and means on the casing adapted to be engaged by the crossbar as the plunger reaches the bottom or the recess to release the fixed gear to tree rotation.

8. A locomotive rod pin lubricator co1nprising a locomotive rod having a recess for lubricant, a plunger adapted for threaded relation with the recess, a member secured to the rod about the recess, a casing secured to the said member, the plunger being provided with a stem extending through the casing, a block within the casing adapted for liInited reciprocal movement by reciprocation ot' the rod, a pawl carried by the block, a ratchet rotatably mounted in the casing and engaged by the pawl, a pinion gear carried by the ratchet, a pair of gears meshing with the pin-r ion gear, one of said gears being adapted for rotating the plunger stem and the other of the said gears being normally held stationary in relation with the casing, the said stationary gear being provided with one more tooth than the other gear, and means for automatically releasing the stationary gear to the said member being provided with ways,

a casing slidably mounted in the ways and having an aperture adapted to register with the aperture in the said member, a spring pressed member slidably mounted in the ap erture of the casing and adapted to be moved by its spring into engagement in the aperture of the said member, block within the casing adapted for limited reciprocal movement by reciprocation of the rod and means whereby reciprocation of the block is comf municated by a gear reduction mechanism to rotate the plunger. 7 1

5. A locomotive rod pin lubricator comprising a locomotive rod having an internal- 1y threaded recess for lubricant, a plate provided with Ways secured to the face of the locomotive rod and having an aperture therein over the recess in the rod, a casing slidably mounted in the ways and having a recess adapted to register with the aperture in the said member, a spring-pressedmember slidably mounted in the recess, a plunger normally held within the recess and preventing movement of the spring-pressed member by the spring, the plunger being adapted to be threaded into the recess and in the rod, n1ove ment of the plunger into the recess of the rod allowing the spring-pressed member to extend from the recess in the casing into the aperture in the member on the locomotive rod, and means within the casing actuated by reciprocation ofthe locomotive rod for threading the plunger into the recess.

tion.

so I

In testimony whereof I sign this specifica- 

